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From: Guy Deleeuw <G.De_Leeuw@eurofer.be>
To: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: How to
Date: Sun, 06 Feb 2011 14:15:44 +0100
Message-ID: <1296998144.2024.14.camel@pc-1000> (raw)

Hello 

I have a strange behaviour :
time psql -d db_cathline -c "SELECT * FROM v_stock_status;"

real	0m5.780s
user	0m0.090s
sys	0m0.020s

time psql -d db_cathline -c "SELECT * FROM v_stock_status WHERE
remain_qty != 0;"

real	0m56.075s
user	0m0.070s
sys	0m0.030s

Why with the clause WHERE the time are 10x greater than ? How can I work
around this ?

# select version();

version                                                   
-------------------------------------------------------------------------------------------------------------
 PostgreSQL 8.4.7 on x86_64-pc-linux-gnu, compiled by GCC gcc-4.4.real
(Ubuntu 4.4.3-4ubuntu5) 4.4.3, 64-bit
(1 ligne)

Regards
Guy

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